Vehicle body with reinforced floor

Abstract

A vehicle body of a vehicle includes: a floor panel, a floor side member coupled to both sides of the floor panel, a front cross member, and a rear cross member, where the floor side member, the front cross member, and the rear cross member are connected to each other to form an annular member structure surrounding an edge of a floor of the vehicle, and the annular member structure forms a load path together with a front side member and a rear side member.

what is claimed is: 
     
         1 . A vehicle body of a vehicle, comprising:
 a floor panel having a floor side member coupled to both side ends thereof;   a front vehicle body part coupled to a front end portion of the floor panel, the front vehicle body part having a front cross member prepared on a lower end portion thereof, and a front side member extending forward from both sides of the front cross member prepared thereon; and   a rear vehicle body part coupled to a rear end portion of the floor panel, the rear vehicle body part having a rear cross member prepared on a lower end portion thereof, and a rear side member extending rearward from both sides of the rear cross member prepared thereon,   wherein the front cross member, the floor side member, and the rear cross member are connected to each other to form an annular member structure surrounding an edge of a floor of the vehicle, and the annular member structure forms a load path together with the front side member and the rear side member.   
     
     
         2 . The vehicle body of the vehicle according to  claim 1 ,
 wherein the floor panel has a flat plate shape and has a high-voltage battery disposed on a lower portion thereof, and the high-voltage battery has both side ends fastened to the floor side member.   
     
     
         3 . The vehicle body of the vehicle according to  claim 1 ,
 wherein a side chamber inner frame is coupled to an outside end of the floor side member, and a side chamber outer part is coupled to the side chamber inner frame so that a side end portion of the floor panel has a double-sectional structure.   
     
     
         4 . The vehicle body of the vehicle according to  claim 1 ,
 wherein the front side member is extended rearward along a lower end of a front wheel house to be connected to a front end of the floor side member.   
     
     
         5 . The vehicle body of the vehicle according to  claim 1 ,
 wherein the rear side member is extended forward along a lower end of a rear wheel house to be connected to a rear end of the floor side member.   
     
     
         6 . The vehicle body of the vehicle according to  claim 1 ,
 wherein a center cross member crossing in a width direction of the vehicle is coupled to an upper surface of the floor panel, and a center member is extended forward from both sides of the center cross member to be connected to the front cross member.   
     
     
         7 . The vehicle body of the vehicle according to  claim 6 ,
 wherein a side chamber inner frame is coupled to an outside end of the floor side member, and an outside end of the center cross member is coupled to the side chamber inner frame together.   
     
     
         8 . The vehicle body of the vehicle according to  claim 7 ,
 wherein the floor side member is molded to have a higher strength than that of the side chamber inner frame.   
     
     
         9 . The vehicle body of the vehicle according to  claim 7 ,
 wherein a side surface unit of an annular member shape constituting an edge of a door opening part is coupled to a side of the floor panel, and the side surface unit forms a cross-sectional structure by constituting a side chamber outer part on a lower end portion thereof and coupling the side chamber outer part to the side chamber inner frame.